This has been a problem for a few months now, I'd crank it up in the morning and the oil light will stay on for a few seconds longer than usual, then go off. I never see the oil light while driving either. Also my vtec isn't engaging. At first I thought it had something to do with my speed sensor going out but I replaced that and still no vtec. When I hit vtec rpm the engine vibrates more than normal. I'm hoping it doesn't have anything to do with the balancer belt but I know that's a possibility, or timing off a tooth. I'm hoping the oil problem is just the pressure sensor but any extra input on both problems would be greatly appreciated. Also I have a cel for o2 sensor but I've had that for as long as I've had the car and still hit vtec.